Bell-operating mechanism



Jam.v 29, 1929. 1,700,289

J. A. GABRIEL BELL OPERATING MECHANISII Filed June. 1926 s Smets-sheet 1Wy/L////////l 5572955945: [mentor:

'Z2/Lw l JUSEPH f4. 4e// @lf2 z Jan. 29, 1929. l ,1,7Q0,289

J. A. GABRIEL BELL OPERATING MECHANISI Filed Jne 9, 1926 5 Smets-Sheet 5[Mentor: JOERH A. @MEE/EL,

Wsses:

l Patented Jan. v29, l1.929.

JOSEPHv A. GABRIEL, F CLVELAND, OHIO.

BELL-OPERATING MECHANISM.

Application led .Tune 9, 1926. Serial No. 114,870.

This invention relates tobell operating mechanism for blast furnacecharging bells and the like, and has for itsobject the provision of anovel forni of mechanism of this o class in which a minimum of power isrequired to operate the bell.

Another object is to provide a mechanism of this class in which theoperating cable slack and stretch will be automatically taken PA furtherobject is to provide a mechanism of the class described in whichbreakage of the operating cable due vto excessive overload is prevented.

A still further object is to provide a bell operating mechanism havingthe novel construction, design and combination of hereinafter describedand illustrated in the accompanying drawings.V v

in the drawings- Figure 1 is a diagrammatic side elevation showing myinvention applied to the charging bell of a blast furnace.

Figure 2 is a plan thereof.

Figure 3 is an enlarged side elevation of the bell operating machine.

Figure 4 is a sectionalview throughrthe bell operating machine. v

Figure 5 is a rear elevation of the same.

Figures 6, 7, 8, 9 and 10 are diagrammatic views of various modifiedapplications or embodiments of my invention.

Referring more particularly to the drawings, Jthe numeral 2 designatesthe'charging bell of a blast furnace which is of standard construction,and 3 designates the lower end of the hopper portion of the furnace. yThe lower edge of the hopper forms a seat 4 against which the bell isseated when closed.

The valve or bell isoperated by a rocking beam or lever 5, fulcrumed inthe customary .way at 6. upon a'support 7 extending upwardly from thefurnace superstructure (not shown). A connecting rod or link 8 is 45connected to the forward end of the-lever 5 to the bell 2, and acounterweight 9 is mounted adjacent the vrear end of the lever 5. Thecounterweight 9 is of a weight' capable of balancing approximatelyninety per centof 50 the Weight of the. bell and rod or link.

The vbell operating machine is designated with a gear 15 on a, shaft 16which is couparts l A as a Wholel bythe letter A, and comprisespled at17 to a worm-gearshaft 18. The shaft 18 carries a worm-gear of usual construction which is meshed with av Wormwheel of usual constructioncarried by a shaft- 19 journaled in bearings 2() andv 2l, the Worm andworm-Wheel casing 22.

The shaft 19 carries a pinion 23 Whichis in mesh with a gear 24 mountedon a stub shaft 25. A crank arm 26 is journaled on a stub shaft 27 inline With the shaft 25. A crank pin 26a is mounted in a bearing in thelower end of the crank arm 26 and in a bearing 28 in the gear 24.

An operating lever 29 is pivotally mounted at its' rear end on a shaft30 mounted in bearings 31 and 32 and is connectcd intermediate its endsto the crank pin 26a by connecting links 33 which are journaled on thepin 2Ga and on a pin 34 passing through a suitable bearing aperture inthe lever 29.

y The free or lower end of the `lever 29 is provided with a bearingaperture in which is mounted a pin or shaft 35 carrying counterweights36.

The counterweights 36 are connected by a yoke 37 which is provided withVan eye 38 to which one end of the bell operating cable 39 'is securedwhile the other end is secured to the rear or counter-weighted end ofthe lever or beam 5. Y'

In operation the crank operated links 33 move the lever 29 andcounterweights 36 up or down to open or closethe bell 2. The beam 5being counterweighted to Within' ten per cent of the load, the ten pervcent of unbalanced bell and rod weight is all that is required to bemoved at rst until the bell begins to seat. As the bell seats the loadis increased andthe counterweights 36 are raised out of their normal orinactive vertical position. As the counterweights 36 move out of theirverticall position they throw their weight into action and aid inclosing the bell 2.

Due to the, novel construction ofv this apparatusthe crank goes deadcenter as the lever 29 reaches its endj of't'ravel, and the I caughtbetween' the bell 2' and its seat orv l some other means A bell 2 anditsy seat.

.oplerating lever 5 is Figure 6the bell provided with a pivoty mountedcrank-s aped counterweight 9a In the construction of lto whichone end ofthe acuatin cable 39 is secured while the other end o the cable ,issecured to a power operated crank arm 45, the cable being trained overan elevated sheave so as to cause au upward pull on the counterweight tothereby rock said counterweight when power is applied to the cable, andthus cushion the application of power from said cable to said bell. i v

In the construction of Figure 7, the bell operating lever 5 is connectedby the cable 39 to one arm of a crank-shaped counterweight 46 which ispivotally mounted atits crank to a crank mechanism 51. y f In Figure "9a carriage l52 is shown.

crank ortion on a vertically reciprocating rack 4 of a power actuatingmeans 48. lllhe counterweight 46 will thus be shifted or rocked aboutits ivotal mounting when power is transmitted) fromv said rack 47 tosaid-,t cable 39 and lever 5.

lIn. the construction ofFigure 8, the bellv operating levier 5 isyconnected by'the cable 39 to one arm of af crank-'shaped counterweight-49 which is pivotally secured at .its pin 50 of a suitable powerlmounted for movement on -a track 53'and carrying a counterweight54pivoted intermediate lits ends to the carriage, and an actuated cable'55is secured to the upper end of 7the' \counterweight' while an actuatingcable 56 is secured to the carriage, 4whereby when power is applied tothe cable 56 the' .counterweight will .be rocked about' lts pivotalconnection to cushion the applica- A. tion of, power to theactuatedcable 55. e. In Figure 1 0 I have shown a modification similarto that shown in Figure 6 except that the cabley39 is passed' directltothe power perated crank arm- 45 an the 'elevated fsheavefis omitted. lv ,v In each ofthe several embodiments of .my

,invention the mechanism on Ione side ofthe pivoted counterweightconstitutes an actuatl 1n ymeans while the mechanism on the other s i econstitutes :the actuated means, and suchx actuating 1'and `actuatedmeans secured, respective yto spaced points vor e count/en weight, the,portion of the eounterweight between said spaced points constitutingand acting as a lever arm for initial y Swingin said ceunterweight aboutone 'of saidy space points as an axis and for thereafter effectingmovement of the actuated means.

While I have shown and described certain end counterweighted to balancethe major portion of the weight of said bell and rod, ,and means forrocking said lever to close said bell, said means comprising 'anoperating lever pivoted at one end to a fixed frame, a counterweight,pivoted to the other end of said lever, a connecting element connectingsaid countcrweight and the rear end of said rockin lever, and means forrocking said operating lever about its pivot. v

2. A bell hoisting. mechanism for blast furnace bells comprising thecombination with a blastfurnace bell, of a rocking lever, arodconnecting` the forward end of said lever with said bell, said leverhavingits rear end counterweighted to balance the major portion of theweight of said bell and rod, and means for rocking said' lever to closesaid bell, said means comprising an o rating lever pivoted at one end toa fixed ame, a counterweight pivoted to the other end of said lever,a coectin said counterweig t an the rear end of sai roc `Alever, and meansfor rocking said operatmg lever about its pivot, said means including acrank, a link connecting said,

crank and said lever,land means for operate ing said crank. y,

3.A bell hoisting mechanism for blast element connectin furnace bellscomprising' the combination with a blast furnace bel1,of a rocking levera rod connectingl the forward `end of sailever with said bell,

greater weight than the uncounterbalanced weight of said bell and 'rod acable connectsaid counterweightand the rear endA of said 'rocking lever,and means for rocking 'sail peltn lever about its pivot.

furnace bells comprising the y,combination with a-'blast furnace bell,of a lever,

id lever having its rear.. end counterweighted to balance the -majoroisting mechanism for blast' a rod connecting the forward end of saidlever with said bell, said lever having its rear end counterweighted tebalance the major portion of the weight of said bell and rod, and meansfor rocking said lever to close said bell, said means comprising anoperating lever'pivoted at one en counterweight pivoted to the other endof said lever, said counterweight being of greater weight than theuncounterbalanced weight of said bell and rod, a cable connecting saidcounterweight and the rear end of lsaid rocking lever, operatlng leverabout its pivot, said means including a motor, a crank operated by saidmotor and a link connecting said crank and said lever.,

5., vA bell hoisting mechanism for. blast d to a fixed frame, a

and means for rocking said furnace bells comprising the combination witha blast furnace bell, of a rocking lever having its forward endconnected to said bell by a rod and having its rear end counter weightedto balance the major portion of the weight of lever pivoted at one `endto a fixed frame, a counter-weight pivotally secured to the other end ofsaid operating lever and connected t0 said rocking lever, said lastnamed counterweight being adapted to balance the uncounterbalancedweight of said bell vand rod, and means :for rocking said operatinglever about its pivot.

ln testimony whereof, l have hereunto signed my name.

Josnrnv A. GABRIEL.

said bell and rod, an operating

